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Official Description

Opiates, 1 or more

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 80361 refers to a laboratory test specifically designed to measure the presence of opiates in various biological samples, including meconium stool, urine, serum, or plasma. Opiates are defined as naturally occurring opioid alkaloids that are derived from the resin of the opium poppy plant, scientifically known as Papaver somniferum. This category of substances includes well-known compounds such as morphine, codeine, and thebaine. In certain instances, naturally occurring derivatives like hydromorphone and hydrocodone may also be detected, although this is relatively rare. Additionally, trace amounts of other substances such as dihydrocodeine, oxymorphone, oxycodone, and metopon may occasionally be identified. It is important to note that the semi-synthetic versions of these compounds are typically classified as opioids or opiate analogs. Opiates are primarily utilized in clinical settings as narcotic analgesics to manage moderate to severe pain. They function as central nervous system depressants and have the capacity to influence brain regions associated with pleasure, thereby inducing a euphoric state alongside pain relief. Due to their psychoactive properties, these substances are sometimes misused for recreational purposes. The collection of samples for this test involves obtaining a blood sample through a procedure known as venipuncture, which is reported separately. Urine samples can be collected via random voiding or catheterization, while meconium stool is gathered from a diaper. To ensure accuracy, all samples are confirmed through a sophisticated analytical technique known as quantitative liquid chromatography-tandem mass spectrometry.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The CPT® Code 80361 is indicated for use in various clinical scenarios where the measurement of opiates is necessary. The following conditions or situations may warrant this laboratory test:

  • Substance Abuse Evaluation This test is often performed to assess potential opiate abuse in individuals, particularly in settings such as rehabilitation centers or during routine screenings.
  • Monitoring Treatment Patients undergoing treatment for pain management with opiate medications may be tested to ensure compliance with prescribed therapy and to monitor for any misuse.
  • Legal and Forensic Testing In legal cases, such as custody disputes or criminal investigations, this test may be utilized to determine the presence of opiates in an individual's system.
  • Newborn Screening The test can be particularly relevant in newborns, especially those born to mothers with a history of opiate use, to assess potential exposure during pregnancy.

2. Procedure

The procedure for conducting the test associated with CPT® Code 80361 involves several key steps to ensure accurate measurement of opiates in the collected samples. The following procedural steps are outlined:

  • Sample Collection The first step involves the collection of biological samples. A blood sample is obtained through venipuncture, which is a standard procedure where a needle is inserted into a vein to draw blood. This sample is crucial for the analysis of opiate levels in serum or plasma. For urine testing, a sample can be collected either through random voiding, where the patient provides a urine sample at will, or via catheterization, which involves inserting a catheter into the bladder to obtain urine directly. Additionally, meconium stool samples are collected from a diaper, particularly in newborns, to assess opiate exposure.
  • Sample Preparation Once the samples are collected, they must be properly prepared for analysis. This preparation may involve processes such as centrifugation of blood samples to separate plasma or serum from blood cells, as well as ensuring urine samples are stored correctly to prevent degradation.
  • Analytical Testing The prepared samples are then subjected to quantitative liquid chromatography-tandem mass spectrometry (LC-MS/MS). This advanced analytical technique allows for the precise measurement of opiate concentrations in the samples. The use of LC-MS/MS is critical as it provides high specificity and sensitivity, enabling the detection of both major opiates and trace amounts of other related substances.
  • Result Interpretation After the analysis is complete, the results are interpreted by qualified laboratory personnel. The findings will indicate the presence and concentration of opiates in the tested samples, which can then be used for clinical decision-making or further evaluation.

3. Post-Procedure

Post-procedure care for patients undergoing testing with CPT® Code 80361 is generally minimal, as the sample collection methods are non-invasive and typically do not require extensive recovery. However, it is important to monitor the patient for any immediate adverse reactions, particularly following venipuncture, where minor bruising or discomfort at the puncture site may occur. Patients should be advised to hydrate adequately after urine collection to facilitate further testing if necessary. The results of the opiate testing will be communicated to the healthcare provider, who will interpret the findings in the context of the patient's clinical situation. Follow-up actions may include additional testing, counseling, or adjustments to treatment plans based on the results obtained.

Short Descr OPIATES 1 OR MORE
Medium Descr DRUG SCREENING OPIATES 1 OR MORE
Long Descr Opiates, 1 or more
Status Code Not Valid for Medicare Purposes
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 9 - Not Applicable
Multiple Procedures (51) 9 - Concept does not apply.
Bilateral Surgery (50) 9 - Concept does not apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 9 - Concept does not apply.
Co-Surgeons (62) 9 - Concept does not apply.
Team Surgery (66) 9 - Concept does not apply.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Code Not Recognized by OPPS when submitted on Outpatient Hospital Part B Bill Type (12x/13x)
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) T2D - Other tests - other
MUE 1
GZ Item or service expected to be denied as not reasonable and necessary
90 Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number.
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
GW Service not related to the hospice patient's terminal condition
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2015-01-01 Added Added
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